Workbook Detail
Number Line 1 20 Hard — Set 1
Find the missing number on the number line (32 to 39, step 1)
Show answer
Answer: 39
- Start
- 32
- End
- 39
- Step
- 1
- Markers
- {"value":32,"blank":false}
- {"value":33,"blank":false}
- {"value":34,"blank":false}
- {"value":35,"blank":false}
- {"value":36,"blank":false}
- {"value":37,"blank":false}
- {"value":38,"blank":false}
- {"value":39,"blank":true}
Find the missing number on the number line (17 to 59, step 1)
Show answer
Answer: 32
- Start
- 17
- End
- 59
- Step
- 1
- Markers
- {"value":17,"blank":false}
- {"value":18,"blank":false}
- {"value":19,"blank":false}
- {"value":20,"blank":false}
- {"value":21,"blank":false}
- {"value":22,"blank":false}
- {"value":23,"blank":false}
- {"value":24,"blank":false}
- {"value":25,"blank":false}
- {"value":26,"blank":false}
- {"value":27,"blank":false}
- {"value":28,"blank":false}
- {"value":29,"blank":false}
- {"value":30,"blank":false}
- {"value":31,"blank":false}
- {"value":32,"blank":true}
- {"value":33,"blank":false}
- {"value":34,"blank":false}
- {"value":35,"blank":false}
- {"value":36,"blank":false}
- {"value":37,"blank":false}
- {"value":38,"blank":false}
- {"value":39,"blank":false}
- {"value":40,"blank":false}
- {"value":41,"blank":false}
- {"value":42,"blank":false}
- {"value":43,"blank":false}
- {"value":44,"blank":false}
- {"value":45,"blank":false}
- {"value":46,"blank":false}
- {"value":47,"blank":false}
- {"value":48,"blank":false}
- {"value":49,"blank":false}
- {"value":50,"blank":false}
- {"value":51,"blank":false}
- {"value":52,"blank":false}
- {"value":53,"blank":false}
- {"value":54,"blank":false}
- {"value":55,"blank":false}
- {"value":56,"blank":false}
- {"value":57,"blank":false}
- {"value":58,"blank":false}
- {"value":59,"blank":false}
Find the missing number on the number line (35 to 46, step 2)
Show answer
Answer: 41
- Start
- 35
- End
- 46
- Step
- 2
- Markers
- {"value":35,"blank":false}
- {"value":37,"blank":false}
- {"value":39,"blank":false}
- {"value":41,"blank":true}
- {"value":43,"blank":false}
- {"value":45,"blank":false}
Find the missing number on the number line (30 to 51, step 2)
Show answer
Answer: 34
- Start
- 30
- End
- 51
- Step
- 2
- Markers
- {"value":30,"blank":false}
- {"value":32,"blank":false}
- {"value":34,"blank":true}
- {"value":36,"blank":false}
- {"value":38,"blank":false}
- {"value":40,"blank":false}
- {"value":42,"blank":false}
- {"value":44,"blank":false}
- {"value":46,"blank":false}
- {"value":48,"blank":false}
- {"value":50,"blank":false}
Find the missing number on the number line (8 to 51, step 2)
Show answer
Answer: 14
- Start
- 8
- End
- 51
- Step
- 2
- Markers
- {"value":8,"blank":false}
- {"value":10,"blank":false}
- {"value":12,"blank":false}
- {"value":14,"blank":true}
- {"value":16,"blank":false}
- {"value":18,"blank":false}
- {"value":20,"blank":false}
- {"value":22,"blank":false}
- {"value":24,"blank":false}
- {"value":26,"blank":false}
- {"value":28,"blank":false}
- {"value":30,"blank":false}
- {"value":32,"blank":false}
- {"value":34,"blank":false}
- {"value":36,"blank":false}
- {"value":38,"blank":false}
- {"value":40,"blank":false}
- {"value":42,"blank":false}
- {"value":44,"blank":false}
- {"value":46,"blank":false}
- {"value":48,"blank":false}
- {"value":50,"blank":false}
Find the missing number on the number line (39 to 55, step 3)
Show answer
Answer: 39
- Start
- 39
- End
- 55
- Step
- 3
- Markers
- {"value":39,"blank":true}
- {"value":42,"blank":false}
- {"value":45,"blank":false}
- {"value":48,"blank":false}
- {"value":51,"blank":false}
- {"value":54,"blank":false}
Find the missing number on the number line (29 to 39, step 2)
Show answer
Answer: 31
- Start
- 29
- End
- 39
- Step
- 2
- Markers
- {"value":29,"blank":false}
- {"value":31,"blank":true}
- {"value":33,"blank":false}
- {"value":35,"blank":false}
- {"value":37,"blank":false}
- {"value":39,"blank":false}
Find the missing number on the number line (38 to 83, step 2)
Show answer
Answer: 60
- Start
- 38
- End
- 83
- Step
- 2
- Markers
- {"value":38,"blank":false}
- {"value":40,"blank":false}
- {"value":42,"blank":false}
- {"value":44,"blank":false}
- {"value":46,"blank":false}
- {"value":48,"blank":false}
- {"value":50,"blank":false}
- {"value":52,"blank":false}
- {"value":54,"blank":false}
- {"value":56,"blank":false}
- {"value":58,"blank":false}
- {"value":60,"blank":true}
- {"value":62,"blank":false}
- {"value":64,"blank":false}
- {"value":66,"blank":false}
- {"value":68,"blank":false}
- {"value":70,"blank":false}
- {"value":72,"blank":false}
- {"value":74,"blank":false}
- {"value":76,"blank":false}
- {"value":78,"blank":false}
- {"value":80,"blank":false}
- {"value":82,"blank":false}
Find the missing number on the number line (32 to 37, step 3)
Show answer
Answer: 32
- Start
- 32
- End
- 37
- Step
- 3
- Markers
- {"value":32,"blank":true}
- {"value":35,"blank":false}
Find the missing number on the number line (8 to 42, step 3)
Show answer
Answer: 29
- Start
- 8
- End
- 42
- Step
- 3
- Markers
- {"value":8,"blank":false}
- {"value":11,"blank":false}
- {"value":14,"blank":false}
- {"value":17,"blank":false}
- {"value":20,"blank":false}
- {"value":23,"blank":false}
- {"value":26,"blank":false}
- {"value":29,"blank":true}
- {"value":32,"blank":false}
- {"value":35,"blank":false}
- {"value":38,"blank":false}
- {"value":41,"blank":false}
Find the missing number on the number line (48 to 97, step 4)
Show answer
Answer: 60
- Start
- 48
- End
- 97
- Step
- 4
- Markers
- {"value":48,"blank":false}
- {"value":52,"blank":false}
- {"value":56,"blank":false}
- {"value":60,"blank":true}
- {"value":64,"blank":false}
- {"value":68,"blank":false}
- {"value":72,"blank":false}
- {"value":76,"blank":false}
- {"value":80,"blank":false}
- {"value":84,"blank":false}
- {"value":88,"blank":false}
- {"value":92,"blank":false}
- {"value":96,"blank":false}
Find the missing number on the number line (48 to 62, step 4)
Show answer
Answer: 48
- Start
- 48
- End
- 62
- Step
- 4
- Markers
- {"value":48,"blank":true}
- {"value":52,"blank":false}
- {"value":56,"blank":false}
- {"value":60,"blank":false}
Find the missing number on the number line (29 to 76, step 4)
Show answer
Answer: 33
- Start
- 29
- End
- 76
- Step
- 4
- Markers
- {"value":29,"blank":false}
- {"value":33,"blank":true}
- {"value":37,"blank":false}
- {"value":41,"blank":false}
- {"value":45,"blank":false}
- {"value":49,"blank":false}
- {"value":53,"blank":false}
- {"value":57,"blank":false}
- {"value":61,"blank":false}
- {"value":65,"blank":false}
- {"value":69,"blank":false}
- {"value":73,"blank":false}
Find the missing number on the number line (21 to 53, step 3)
Show answer
Answer: 21
- Start
- 21
- End
- 53
- Step
- 3
- Markers
- {"value":21,"blank":true}
- {"value":24,"blank":false}
- {"value":27,"blank":false}
- {"value":30,"blank":false}
- {"value":33,"blank":false}
- {"value":36,"blank":false}
- {"value":39,"blank":false}
- {"value":42,"blank":false}
- {"value":45,"blank":false}
- {"value":48,"blank":false}
- {"value":51,"blank":false}
Find the missing number on the number line (12 to 24, step 3)
Show answer
Answer: 18
- Start
- 12
- End
- 24
- Step
- 3
- Markers
- {"value":12,"blank":false}
- {"value":15,"blank":false}
- {"value":18,"blank":true}
- {"value":21,"blank":false}
- {"value":24,"blank":false}
Find the missing number on the number line (47 to 79, step 3)
Show answer
Answer: 47
- Start
- 47
- End
- 79
- Step
- 3
- Markers
- {"value":47,"blank":true}
- {"value":50,"blank":false}
- {"value":53,"blank":false}
- {"value":56,"blank":false}
- {"value":59,"blank":false}
- {"value":62,"blank":false}
- {"value":65,"blank":false}
- {"value":68,"blank":false}
- {"value":71,"blank":false}
- {"value":74,"blank":false}
- {"value":77,"blank":false}
Find the missing number on the number line (46 to 64, step 1)
Show answer
Answer: 50
- Start
- 46
- End
- 64
- Step
- 1
- Markers
- {"value":46,"blank":false}
- {"value":47,"blank":false}
- {"value":48,"blank":false}
- {"value":49,"blank":false}
- {"value":50,"blank":true}
- {"value":51,"blank":false}
- {"value":52,"blank":false}
- {"value":53,"blank":false}
- {"value":54,"blank":false}
- {"value":55,"blank":false}
- {"value":56,"blank":false}
- {"value":57,"blank":false}
- {"value":58,"blank":false}
- {"value":59,"blank":false}
- {"value":60,"blank":false}
- {"value":61,"blank":false}
- {"value":62,"blank":false}
- {"value":63,"blank":false}
- {"value":64,"blank":false}
Find the missing number on the number line (21 to 31, step 4)
Show answer
Answer: 29
- Start
- 21
- End
- 31
- Step
- 4
- Markers
- {"value":21,"blank":false}
- {"value":25,"blank":false}
- {"value":29,"blank":true}
Find the missing number on the number line (5 to 40, step 2)
Show answer
Answer: 19
- Start
- 5
- End
- 40
- Step
- 2
- Markers
- {"value":5,"blank":false}
- {"value":7,"blank":false}
- {"value":9,"blank":false}
- {"value":11,"blank":false}
- {"value":13,"blank":false}
- {"value":15,"blank":false}
- {"value":17,"blank":false}
- {"value":19,"blank":true}
- {"value":21,"blank":false}
- {"value":23,"blank":false}
- {"value":25,"blank":false}
- {"value":27,"blank":false}
- {"value":29,"blank":false}
- {"value":31,"blank":false}
- {"value":33,"blank":false}
- {"value":35,"blank":false}
- {"value":37,"blank":false}
- {"value":39,"blank":false}
Find the missing number on the number line (1 to 50, step 2)
Show answer
Answer: 9
- Start
- 1
- End
- 50
- Step
- 2
- Markers
- {"value":1,"blank":false}
- {"value":3,"blank":false}
- {"value":5,"blank":false}
- {"value":7,"blank":false}
- {"value":9,"blank":true}
- {"value":11,"blank":false}
- {"value":13,"blank":false}
- {"value":15,"blank":false}
- {"value":17,"blank":false}
- {"value":19,"blank":false}
- {"value":21,"blank":false}
- {"value":23,"blank":false}
- {"value":25,"blank":false}
- {"value":27,"blank":false}
- {"value":29,"blank":false}
- {"value":31,"blank":false}
- {"value":33,"blank":false}
- {"value":35,"blank":false}
- {"value":37,"blank":false}
- {"value":39,"blank":false}
- {"value":41,"blank":false}
- {"value":43,"blank":false}
- {"value":45,"blank":false}
- {"value":47,"blank":false}
- {"value":49,"blank":false}
Teaching Notes
Practice number line 1 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
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